Statutory terminable individual property classification agreement
Wis. Stat. § 766.589
in effect(1) Generally.
(a) For purposes of determining ownership of property classified by an agreement under this section, a spouse owns property if the property is held by that spouse. If property classified by an agreement under this section is not held by either or both spouses, ownership of the property is determined as if the spouses were unmarried when the property was acquired.
(b) Spouses may execute an agreement under this section to classify the marital property of the spouses presently owned and property acquired, reclassified or created in the future that would otherwise be marital property, as the individual property of the owner. At the death of the owning spouse, property classified by an agreement under this section is subject to the rights of the surviving spouse under sub. (7). Except as provided in this section, s. 766.58 applies to an agreement under this section. The form of the agreement is set forth in sub. (10). Persons intending to marry each other may execute an agreement as if married, but the agreement becomes effective only upon their determination date.
(c)
1. If at the time an agreement under this section is executed property is held as survivorship marital property, the property is classified as the individual property of the owners and is owned as a joint tenancy. If at the time an agreement under this section is executed property is held in a form as provided under s. 766.60 (1) or (2), the property is classified as the individual property of the owners and is owned as a tenancy in common. If while an agreement is in effect spouses acquire property as a joint tenancy exclusively between themselves or as survivorship marital property, the property is classified as the individual property of the owners and is owned as a joint tenancy. If while an agreement is in effect spouses acquire property as tenants in common exclusively between themselves, the spouses’ respective ownership interests in the property are classified as the individual property of the owners. If while an agreement is in effect spouses acquire property held in a form as provided under s. 766.60 (1) or (2), the property is classified as the individual property of the owners and is owned as a tenancy in common. An agreement under this section does not affect the incidents under ch. 705 of a joint account, as defined in s. 705.01 (4).
2. For purposes of an agreement under this section, to the extent the incidents of a joint tenancy or tenancy in common conflict with or differ from the incidents of individual property, the incidents of the tenancy in common or joint tenancy, including the incident of survivorship, control.
(2) Execution. An agreement under this section shall be signed by both parties to the agreement. An agreement under this section is executed when the signature of each party to the agreement is authenticated or acknowledged. The agreement executed shall conform to the requirements under sub. (10).
(3) Effective date and effective period.
(a) An agreement under this section is effective when executed or upon the determination date, whichever is later.
(b) If the spouses have not completed the financial disclosure form under sub. (10) before or contemporaneously with execution of the agreement, the agreement terminates 3 years after the date that both spouses signed the agreement, unless terminated earlier by one of the spouses under sub. (4).
(c) If the spouses have completed the financial disclosure form under sub. (10), the agreement terminates when the terms of the agreement no longer apply after dissolution or the death of a spouse, unless terminated earlier by one of the spouses under sub. (4).
(3m) Limitation on execution of 3-year agreement. If spouses execute an agreement under this section which becomes effective for any period and, for that agreement, do not complete the financial disclosure form under sub. (10), the spouses may not execute a subsequent agreement under this section for the same marriage unless the financial disclosure form under sub. (10) is completed.
(4) Termination by one spouse; good faith duty.
(a) An agreement under this section terminates 30 days after a notice of termination is given under par. (b) by one spouse to the other spouse. An example of a termination form is set forth in sub. (10).
(b) Notice of termination is given to the other spouse on the date:
1. That signed termination is personally delivered to the other spouse; or
2. That signed termination is sent by certified mail to the address of the other spouse last known to the spouse giving notice of termination.
(c) After notice of termination is given under this subsection and until the agreement terminates, each spouse shall act in good faith with respect to the other spouse in matters involving the property of the spouse who is required to act in good faith which is classified as individual property by the agreement. Management and control by a spouse of that property in a manner that limits, diminishes or fails to produce income from that property does not violate this paragraph.
(d) This subsection does not affect the ability to amend, revoke or supplement an agreement under this section by separate marital property agreement under s. 766.58 (4).
(e) With respect to its effect on 3rd parties, a termination under this section shall be treated as a marital property agreement.
(5) Enforceability.
(a) If the spouses do not complete the financial disclosure form under sub. (10), the agreement terminates as provided under sub. (3) (b) and the agreement is enforceable without the disclosure of a spouse’s property or financial obligations.
(b) If the spouses complete the financial disclosure form under sub. (10), the maximum duration of the agreement is 3 years after both spouses have signed the agreement if the spouse against whom enforcement is sought proves that the information on the disclosure form did not provide fair and reasonable disclosure, under the circumstances, of the other spouse’s property or financial obligations. This paragraph applies notwithstanding the fact that a spouse had notice of the other spouse’s property or financial obligations.
(c) Section 766.58 (6) (c) does not apply to an agreement under this section.
(6) Effect on support and divorce. An agreement under this section does not affect any of the following:
(a) The duty of support that spouses otherwise have to each other.
(b) The determination of property division under s. 767.61.
(c) The determination of maintenance payments under s. 767.56.
(7) Rights of surviving spouse. Notwithstanding the fact that an agreement under this section is in effect at, or has terminated before, the time of death of a spouse who is party to the agreement, the surviving spouse may elect under s. 861.02. For the purpose of the election, in addition to the property described in s. 851.055, property acquired during marriage and after the determination date which would have been marital property but for the agreement is deferred marital property.
(8) Other means of classification. This section is not the exclusive means by which spouses may reclassify their marital property.
(9) Effect of termination. Termination of an agreement under sub. (3) or (4) does not affect the classification of property acquired before termination. Property acquired after termination is classified as provided under this chapter.
(10) Statutory terminable individual property classification agreement form. The language of a statutory terminable individual property classification agreement form shall be identical to the language included in the form set forth under this subsection. The format of a statutory terminable individual property classification agreement shall be substantially as follows:
Source: WI Statutes (Official Site)URL: https://docs.legis.wisconsin.gov/document/statutes/766.589Fetched: 10/7/2026